Results 1 to 10 of about 363 (110)

The complete mitochondrial genome of pitted stingray Bathytoshia brevicaudata (Myliobatiformes: Dasyatoidea) [PDF]

open access: yesMitochondrial DNA. Part B. Resources, 2020
The complete mitochondrial genome of pitted stingray, Bathytoshia brevicaudata (Myliobatiformes: Dasyatoidea) was investigated by next-generation sequencing. The analyzed mitochondrial genome was 17,640 nucleotides in length and had 59.2% for AT contents.
Jong-Oh Kim   +4 more
doaj   +2 more sources

Secondary predation constrains DNA-based diet reconstruction in two threatened shark species [PDF]

open access: yesScientific Reports, 2021
Increasing fishing effort, including bycatch and discard practices, are impacting marine biodiversity, particularly among slow-to-reproduce taxa such as elasmobranchs, and specifically sharks. While some fisheries involving sharks are sustainably managed,
Mark de Bruyn   +3 more
doaj   +2 more sources

Feeding habits of Urotrygon microphthalmum (Myliobatiformes: Urotrygonidae) caught off northeastern Brazil

open access: yesNeotropical Ichthyology, 2021
The feeding habits of Urotrygon microphthalmum, a Critically Endangered (CR) species, were investigated through stomach contents analysis from specimens caught on bottom double rigged otter trawls in Pernambuco state, Brazil, between March of 2010 and ...
Hugo Bornatowski   +2 more
exaly   +3 more sources

Branching patterns of the afferent branchial arteries and their phylogenetic significance in rays (Batoidea) [PDF]

open access: yesScientific Reports, 2021
Rays of the superorder Batoidea comprise the most diverse group of chondrichthyans in terms of valid species and morphological disparity. Up to the present little agreement is observed in studies based on morphological and molecular data focused on ...
Karla D. A. Soares, Mônica Toledo-Piza
doaj   +2 more sources

Aerial Imagery Reveals Abnormal Stingray, Taeniura lymma (Myliobatiformes: Dasyatidae), in the Central Red Sea [PDF]

open access: yesEcology and Evolution
While morphological abnormalities have been widely reported in batomorphs, ontogenetic deformities of the posterior pectoral fin are rare. In this paper, we present a bluespotted ribbontail ray, Taeniura lymma (Forsskål, 1775), with symmetrically ...
Ioana Andreea Ciocănaru   +5 more
doaj   +2 more sources

RETRACTED: Aerial imagery reveals abnormal stingrays, Taeniura lymma (Myliobatiformes: Dasyatidae), in the central Red Sea

open access: yesEcology and Evolution
While morphological abnormalities have been widely reported in batomorphs, ontogenetic deformities of the posterior pectoral fin are rare. In this paper, we present two individuals of the bluespotted ribbontail ray, Taeniura lymma (Forsskål, 1775), with ...
Ioana Andreea Ciocănaru   +4 more
doaj   +2 more sources

How many lineages are there of the stingrays genus Hypanus (Myliobatiformes: Dasyatidae) and why does it matter? [PDF]

open access: yesNeotropical Ichthyology
Stingrays genus Hypanus currently encompasses nine valid species from the Atlantic and Pacific oceans, though the phylogenetic relationships amongst some of them were based on a single mitochondrial gene and did not involve all putative Hypanus species ...
Lima S M Q, Lei Yang, Gavin Naylor
exaly   +3 more sources

Age and Growth of the Threatened Smalleye Round Ray, Urotrygon microphthalmum, Delsman, 1941, from Northeastern Brazil

open access: yesFishes, 2023
The age and growth of Urotrygon microphthalmum were studied using specimens captured between March 2010 and March 2012 as by-catch in the shrimp trawl fishery off the coast of the state of Pernambuco, Brazil.
Jones Santander-Neto   +3 more
doaj   +1 more source

Molecular and morphological analyses reveal phylogenetic relationships of stingrays focusing on the family Dasyatidae (Myliobatiformes). [PDF]

open access: yesPLoS ONE, 2015
Elucidating the phylogenetic relationships of the current but problematic Dasyatidae (Order Myliobatiformes) was the first priority of the current study. Here, we studied three molecular gene markers of 43 species (COI gene), 33 species (ND2 gene) and 34
Kean Chong Lim   +3 more
doaj   +1 more source

Contrasting the reproductive potential of Narcine entemedor and Rhinoptera steindachneri: 2 viviparous batoid species with different reproductive strategies

open access: yesCiencias Marinas, 2023
Narcine entemedor and Rhinoptera steindachneri are 2 viviparous batoid species of commercial importance on the Pacific coast of Mexico. However, no adequate management plan has been set forth for either of them to ensure sustainable use.
Maria Itzigueri Burgos-Vázquez   +5 more
doaj   +1 more source

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